LL103B-7 Equivalent & Substitute Parts

Part Overview

The LL103B-7 is a Schottky diode rated for 30 V DC reverse voltage with 200 mA average rectified current in a surface mount SOD-80 MiniMELF package. Manufactured by Vishay General Semiconductor - Diodes Division, this component is classified as obsolete. Due to its obsolete product status, equivalent substitute parts with identical electrical and mechanical specifications are available to support ongoing design requirements and production continuity.

Substiute Parts

LL103B-7

Vishay General Semiconductor - Diodes DivisionIn Stock: 1000LL103B-7 Datasheet

Current PartRFQ

LL103B-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 5214LL103B-GS08 Datasheet

Parametric EquivalentRFQ

LL103B-GS18

Vishay General Semiconductor - Diodes DivisionIn Stock: 855LL103B-GS18 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LL103B-7 are qualified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Electrical Parameters (Must Match):

• Voltage - DC Reverse (Vr) (Max): 30 V
• Current - Average Rectified (Io): 200 mA
• Voltage - Forward (Vf) (Max) @ If: 600 mV @ 200 mA
• Reverse Recovery Time (trr): 10 ns
• Current - Reverse Leakage @ Vr: 5 µA @ 20 V
• Capacitance @ Vr, F: 50 pF @ 0 V, 1 MHz

Mechanical Parameters (Must Match):

• Package / Case: DO-213AC, MINI-MELF, SOD-80
• Mounting Type: Surface Mount
• Operating Temperature - Junction (Max): 125°C

Compliance Parameters (Must Match):

• Technology: Schottky
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The substitute parts LL103B-GS08 and LL103B-GS18 meet all electrical, mechanical, and compliance requirements. These parts differ only in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) and product status (Active versus Obsolete).

Parameter Comparison

Engineering Selection Recommendations

LL103B-GS08 is the primary substitute for LL103B-7. This part maintains identical electrical and mechanical specifications while offering active product status and improved supply availability (5200 pcs in stock). The Cut Tape & Digi-Reel® packaging format provides flexibility for both prototype and production environments. ROHS3 compliance and MSL 1 rating ensure compatibility with standard manufacturing processes.

LL103B-GS18 is an alternative substitute with identical electrical and mechanical specifications. This part is supplied in Tape & Reel format, suitable for high-volume automated assembly operations. Active product status and ROHS3 compliance support long-term design continuity. Current inventory of 810 pcs supports production requirements.

Both substitute parts are manufactured by the same supplier (Vishay General Semiconductor - Diodes Division) and share the same base product number (LL103), ensuring design and functional compatibility with the obsolete LL103B-7.

Frequently Asked Questions (FAQ)

Q: Can LL103B-GS08 or LL103B-GS18 be used as direct replacements for LL103B-7?

A: Yes. Both substitute parts meet all electrical parameters (30 V reverse voltage, 200 mA current, 600 mV forward voltage, 10 ns recovery time, 5 µA leakage, 50 pF capacitance), mechanical specifications (SOD-80 MiniMELF package, surface mount), and compliance requirements (ROHS3, MSL 1) of the LL103B-7. The only differences are packaging format and product status.

Q: What is the difference between LL103B-GS08 and LL103B-GS18?

A: Both parts have identical electrical and mechanical specifications. The difference is in packaging format: LL103B-GS08 is supplied in Cut Tape & Digi-Reel® format, while LL103B-GS18 is supplied in Tape & Reel format. Selection depends on assembly process requirements and volume needs.

Q: Why is LL103B-7 marked as obsolete?

A: The LL103B-7 is classified as obsolete by the manufacturer. Active substitute parts (LL103B-GS08 and LL103B-GS18) are available with identical specifications to support ongoing production and design requirements.

Q: Are there any compliance or certification differences between these parts?

A: No. All three parts (LL103B-7, LL103B-GS08, and LL103B-GS18) are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. Compliance certifications are identical.

Q: Which substitute should I select for new designs?

A: For new designs, either LL103B-GS08 or LL103B-GS18 is appropriate. Selection should be based on assembly process compatibility: LL103B-GS08 for flexible packaging needs, LL103B-GS18 for high-volume tape and reel operations.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. All three parts use the same SOD-80 MiniMELF package footprint and have identical electrical characteristics. They are mechanically and electrically interchangeable at the component level.